12350666 has 4 divisors (see below), whose sum is σ = 18526002. Its totient is φ = 6175332.

The previous prime is 12350659. The next prime is 12350671. The reversal of 12350666 is 66605321.

12350666 = 1009² + 1010² + ... + 1020².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66605321 = 4799 ⋅13879.

It can be written as a sum of positive squares in only one way, i.e., 10699441 + 1651225 = 3271^2 + 1285^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3087665 + ... + 3087668.

Almost surely, 2^12350666 is an apocalyptic number.

12350666 is a deficient number, since it is larger than the sum of its proper divisors (6175336).

12350666 is an equidigital number, since it uses as much as digits as its factorization.

12350666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6175335.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 12350666 is about 3514.3514337641. The cubic root of 12350666 is about 231.1515406512.

Adding to 12350666 its reverse (66605321), we get a palindrome (78955987).

The spelling of 12350666 in words is "twelve million, three hundred fifty thousand, six hundred sixty-six".